Assume that a country's production function isY = AKL.The ratio of capital to output is 4, the growth rate of output is 2 percent, and the depreciation rate is 4 percent. Capital is paid its marginal product.

a.What is the marginal product of capital in this situation?

b.If the economy is in a steady state, what is the saving rate?

c.What is the marginal product of capital if the economy reaches the Golden Rule level of capital?